Angular: cypress test doesn't pass using oauth2 and dev-server.

[mshima]

Overview of the issue

See #28316 and #33971

Motivation for or Use Case

Make sure dev-server is working correctly with oauth2

Reproduce the error

Related issues

Suggest a Fix

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[hiSandog]

A generated-app regression test would be ideal here because OAuth2 + Angular + dev-server has several moving parts. If the failure is tied to the dev-server proxy or auth redirect timing, the Cypress test should assert the app reaches the authenticated route after the callback rather than only checking that the login page rendered.